Caterpillar C27 C32 C18 diesel engine assembly crankcase blow by is on the high side

Mondo Cars Updated on 2024-02-03

[Carter C27 C32 C18 diesel engine assembly crankcase blow-by is high].

The phenomenon of high blow-by in the crankcase of Carter C27, C32 and C18 diesel engine assemblies is one of the more common problems in engine work. Crankcase blow-by refers to the phenomenon that the gas in the engine crankcase leaks outward through the gap between the crankshaft and the crankcase, usually caused by excessive pressure in the crankcase or poor crankcase sealing. High crankcase blow-by will not only affect the normal operation of the engine, but also lead to a series of problems such as engine power decline and fuel consumption increase. Therefore, it is of great significance to solve the problem of high blow-by gas in the crankcase to ensure the normal operation of the engine and improve the efficiency of the engine.

First, the reason for the high blow-by of the crankcase of the Carter C27, C32 and C18 diesel engine assembly.

There may be a variety of reasons for high crankcase blow-by, and the following are the possible causes and analysis:

1.Poor crankcase sealing.

Poor crankcase sealing is one of the main reasons for high blow-by in crankcases. Poor crankcase seals can be caused by worn, aging, or improper installation of seals, among other things. Worn or deteriorating seals can lead to a decrease in seal performance, which can make gas leaks in the crankcase easily. Improper installation can also lead to poor sealing, which in turn can lead to high blow-by in the crankcase.

2.The pressure in the crankcase is too high.

The high pressure in the crankcase is also one of the reasons for the high blow-by air in the crankcase. In engine operation, the gas pressure in the crankcase may increase due to various factors, such as insufficient combustion, excessive lubricating oil temperature, etc. If the pressure inside the crankcase is too high, it can cause gas to leak out through the gap between the crankshaft and the crankcase, resulting in high blow-by gas.

3.The lubricating oil temperature is too high.

High lubricant temperatures can also lead to high crankcase blow-by. Lubricating oil plays a role in lubrication and cooling in engine work, if the temperature of the lubricating oil is too high, it will cause the gas pressure in the crankcase to rise, and then cause the crankcase to be high.

Second, the solution of high blow-by gas in the crankcase of Carter C27, C32 and C18 diesel engine assembly.

In view of the above possible reasons, the following is how to solve the high blow-by gas of the crankcase of the Carter C27, C32 and C18 diesel engine assembly:

1.Inspect and replace the seals.

If the seal is worn or aged, it should be inspected and replaced in time. When replacing the seal, care should be taken to install the seal correctly to ensure that the seal is well sealed. At the same time, attention should be paid to cleaning the seals and related components to avoid poor sealing caused by debris.

2.Controls the pressure in the crankcase.

There are many ways to control the pressure in the crankcase, such as improving the combustion condition and adjusting the oil supply to the oil pump. By controlling the pressure in the crankcase, the risk of high blow-by in the crankcase can be effectively reduced.

3.Reduce the temperature of the lubricating oil.

Ways to reduce the temperature of the lubricating oil include replacing the lubricating oil with a more resistant high temperature, adding an oil cooler, etc. By reducing the oil temperature, the gas pressure in the crankcase can be effectively reduced, which in turn reduces the risk of high blow-by gas in the crankcase.

4.Regular inspection and maintenance.

Regular inspection and maintenance is an important measure to ensure the normal operation of the engine. Through regular inspection and maintenance, potential problems can be identified and solved in a timely manner, and major failures caused by the accumulation of small problems can be avoided. When inspecting and maintaining, attention should be paid to the maintenance cycle and maintenance items recommended by the manufacturer to ensure that the maintenance is in place.

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